初中有理數(shù)計(jì)算題500道及答案已整理

1、初中有理數(shù)計(jì)算題500道及答案115（護(hù)歸）97111Y 詁-(-5 y.1+ (-4 - 3(-16-50 + 3)寺(一2)A13 2. , 1-( - I +3 21 14 742-13x-0.34Xy+-x(-13)-x034一一 +47 123g 討陽弓+1-)x(-15x4)6 20 5 12(-)x-x(-2.4) 1870.8x2111415161819(-0.5)(一3丄)+675-5-4217UB21 + 43缶S3普-仏”(x ( ) + (32)斗(8) 3(-9)x(-4)+ (-60) 1220-1一3 | -rlO (15) X26-1517|+ -151(7)-

2、 +_(|243)+(|246)_ 31(12) X(1)I r (I1T2 X -13 +1_28(27令&于于29loo F (12)1(132)1110115(+0.125)+(0.25)3642X(JTT(0.25)34E(:t:T+(s)403x(12=14x(13) +8(2T+GT(51SIT04)X(I25)一(I1UIQI0.5V3211x(1455)+365x455211x545+545x36534E丄平警？)TTTlrA-rxx2T3)T23635117X(-l)Iux2J+ (-2)J-r251.(-l)wx2J+ (-2)J+2-2? _ (-2)2-2、+3

3、-2528 2 -r(4)x( 7 + 5) 7X2- (3)2653.（一3）乙一扌 + （訓(xùn)一（一6）口4(_10)+(-4)(3 + 3)x254一1-(一2一(1-0.5 x 4)(-1)4-Q-0.5)XLx2-(-2):55.2 x (+3 )十3 + (+22 )手3 2 x 5 3522 3(_2)卻+ (-2)炯569+5 x (-3)一 (一2)4 4(-0.25嚴(yán) *嚴(yán)57(-5/x 2-(-6)-300 4-5-0.52+l-|-22-414 - (-1)3xl2958221一1一X(l)4d-3395912-4x(3-10)14-4(_2)，-3X(-4)+2-(-3

4、)*2)11 141424344454647484950一2斗(-4)x(_7 + 5)60 2x(-3)J-4x(-3)+1572164-(-2)3-(- -)XM)873(W)5(- ；)+(-2)x(-14)2361x2 2x399x100-14-X(2-(.3)-o3+50-r21 2x(-1)-171打x()616263646566676869x(-)-23-(-l)l00-12-r(-|)1+|-1-32X2|75 -+- + +-74-3十5 + (1 _ 0.2 x扣(-2)8 3 x (1) (4)47712-4 f 71(?+rTZtlOtl:(Y-)X.74-9T7-l9

5、51Gl-)xr 6+l 6P- 591PIt9l09xy-Z-l 91ro+(“-)xP 6尹嚴(yán)0Z91(8 0-)+y-1( -)+( 9*0 x | -1 j + - x g-(f-)fzI(6-)(8l-9 + ZZ-T8-)ESI_冷+號門_7 Z191(y-)x(| 1-)(-)*_卜彳 + (*) +7 + *- 091(60-) + 8 0 +(8 l-) + fl 6“8；lf( (1【9N) )-”Z -Z/PISl( (-)x( (6-) -mnrxn +nnr(Z,-) 0lnxfxoio:( (7) )6tl175(+)+( 2詁(+3=)( 5環(huán)+ (15 =511

6、1169 (-3)+-(+2) + (+5.175)+ -3 +63253714837,166 ( + 0.1)+( + 8-) + 11- + |-4.4|88-9 + 一36 252541167 (-3632) + 35 +50168忖(+ (-302.5)+((+4H4662-3.8X2.4X799.6X(-U)X(33_3X9)X881一83.6(0.2) x (0.4) x(1)832193五憑亍(巧)心1791801811821831841851861873x 5:-6 + (-8)2x(-2)3xl4片4也（-2片+卜3572-( + 15.8)195

7、(-)x(-4)3-0.25 x(-5)x(-4)38-0.47-(-3)50196 -(-3)Jx2-x0.25x(-4)x9190 3 x 2 + (2) x 3 48一 (2)+(2189206-8x(-5)-634-5x(-丄F(4)24x(rr2)214 -yx-32x(-y)2-2J(4) + 4冷5 +罔)207197198199.200201202203204205208209(-;)+(-； )-(-4.9) 0.6210(-16-50 + 3y)-r(-2)211(-6)x8-(-2)J-5 x (6) (4) + (8213-i1997-a-o.5)xl“I6 6 6(_

8、小(右)+(-7)x(右) +5(右)228.（一3）讓（一4尸229. -2、(-丄)0(0.8)，230.-33X(-1)(-2)3-(-1)2(-2)Jx(-)3x(-|)3215（弓心 5223.(-)l3x38x(-2216-l4-Q-0.5)xlx2-(-3)2J224一7,+217(-81)(4-2.25)x(-i)225.(-2 f -r218-5)十4 + (1226.8-23(-4)3-219100 -r (2) (2) -r ()3231(粧220 x (-4)-0.25 x (-5)x(-4)3232 6 + 2:x(-)10 + 8 4-(2)* 4x3-15-(-0

9、.4)X(-2.5)2434XMLy- (-4.5 + 3)(-14) + 26 + (-14) + (-16) + 8(-5.5)+ (-3.2)-(-2.5)-4.8(-8) x (-25) x (-0.02)x(-72)2 96 12(-2)十(冷”(-4)2 x(-344. (- j)3x(- j)2-!-(-y)x (-1)4-32+|一2245Q*（弓忌汁卜（小2332342352362372382392402417252I叱+(2)xu(1)1(12)4+(12)253(|5厶2|(|6)一|300十5258(l5 S)X3 2+4SX6 8260(II3)x(l134)XHX(

10、lI-)136726二(ile (AVGX262246120+(15)(28)11724765+23115+7249(5.54)+(3.2)I(2.5)4 82509 + 5X(I3)I(I2)347256(i I I + I丨)X(115X4)620512100-r(-2)2-(-2)-r(-)+ (-2)337 + 2 x (3)* + (6) + ()3(J) -r (-8) - (- )3x (-22)5* (2) + Q. 0.8 x ) -r|1 1277 0-(-3)?+3x(-2)269 (-6)x(-4) + (-32)-r(-8)-3265-4)2* (-2“(-1)2 1

11、6274X(-4)2-0.25X(-5)X(-4)J266-+ -r (-2) X (-)2514T-16|-2(_4)r廿-(弓)267雖）十為心滬扌276(一9)x(-4) + (-60)+12268(-0.5)-(-3)+ 6.75-51270(_5-)-(-16)-(-2)263-F- 1- +(-12)6262287-73+ 2X(-3)2+ (-6)H-(- -)2288(-3)扌+(-2)J-(-3)5X(-1)J-(-3)J290 100寺(一2)?_(_2)寺(_勺3-23-(-1)2-(-1)3X(-23)JJ(-2)2x(.l)2913+，x(-1306 9.53 - 8

12、 - (2-1 -11.64 +1.53 -1.361)307 73 1 7 - (812.03-1219.83 + 5181)-0.250(-0 5)，+(丄 _-)x(-l)108 2-( 3) - 3 + 0.4 x(-l)-r (-2)-l4+ a-0.5)x-x2x(-3):3-4 x Q - 7) +6 J3+(-5)3- 3+(-2)3313 ()x83+()x(13) ( )x286 6 6(-l)l0 x2 + (-2)s+43053 8-r(2) 1+ (3)* x (2) +0.25296297298299300301302303304312詁（號（.2占）x（-4扌）(

13、-10)4+(-4)3308-ll+|12-(39-8309-9-|5-(9-45)|(_2)4-(-8).(-)3X(-22)310 5.6 + 4.7 | 3.83.8l31132024 | i7 | 62 | i5Xu153X1 | 3wU | 23io3283IjXP114 | 3M+13 | 2 +X o12| LX nr叱X13| bM12wU1v-z_3 I 3336+ .:+-1X33X51997x1999(7TTKIT(49T06S63八) + (2)323(6)X8丄2rl(l4)x*-5324(I2)x(4)】10.25xs)x(4)38326(+y(rr2)6 6 6(

14、-5) X (-3y) + (-7) x(-3-) + 12x (-3 y)一-22-(-3)36-4.03712 + 7.53712-36x(1-!.)9 6 18矩冷o卜卜料劭(一3) x (-4)-5x-8-2x(一6)十4(-1155)+(-ll)x 3x(-5)-52-4+a-0.2xl)4-(-2)J340 _0.253心）沖嚴(yán)嚴(yán)呼24331332333334335336337338339卜3 x($ 0町+(2扌)343-2:-(-2)3-23-(-2)3344341 1-3丄鼻x叭411 33411345卜2, - (-2):|-|(-3)2+ (-3)V-|-|4+9卜卜7?

15、|(7r9 0-l)-fl-4- 09nxY-ry-jro Yi-S6rr(9 0-)+-!心c Z-半噸-卜（）PP zxtnlx(z o-)x蘆J- $7fI()十-xro-ii+ f- -f-zxrISE(6fc(f-)-z|6 0十0$X70-IxfO91P1X - (|04-3.1+26l-(l50 x37033x(5)+32+(2)3丄-4x6-亠2r0.62510 3。0.1)3713)/rr+0.2|2 2536216T0.4)x(l2.5)rT土主367匚卜七m48)126824J(SXXX2WSTV(L67X(62)土f8TxQ67T?盡666666666土666066艾8

16、73X062丄066IX8V3)x(LT)-l-oofff 6以6bXX z1_4-二1+V 14-aar()5x (0.6)* ( ) x 1.5 2寺()5394 987654321 x98765 4324 - 987654323 x 9876543221997 x 20002000 - 2000 x199719973911949-1950+1951-1952+ +1997-1998- +19993強(qiáng)(丄丄)353 2114386 (0.125)x(-2)喚393387（瀘（。.6迸2訴（滸1+21+2+31 + 2 + 3 + 10099389 3+3*+3 + 3皿395扛(出+ (扛

17、以)+(丄+223 34 4 4100 1001003883903968x397X(-4)X(-2)398405408-5 + (-2)4-24-r(-2)J409(-28)十(-6+ 4)+ (-1)x54102專(-2) + 0一7-(-8)x(2)412 12，十（一3）十（一2）（一9）十3414 -2J+ (-2)Jx (-1) - (-2)44-(-2)399406 8-(-4)寺2x3407. 7 x 3,+3+(一3)，(-5)3-3x(-)40340241131+一8 6x24+ 62弓+187心400-24+ (3-7)1-2X(-1)2401(-1嚴(yán)x2 + (-2人4心

18、八2沁弓404415 (-l)Jx(-5)-r(-3/ +2x(-5)427- -(-2)3+ (1-0.8XI)|-1-1|420 4x(-3)-15+ (-3)-50428I 扣(W2)421 -l3-a-0.5)xlx2-(-3)2429 -4+2x(-3)-6-r0.25430 (-5)-r(1.85-(2-l-)x74416-(-181.6.75417-5- (-2)+ (1 -0 8 x )引-1 -1 I425嗎x(_4)419 -32+y-(-2)x44360125+437.15【(91)】31112O8143118艾 1 丄0.4+(110.4)=0.44321+P-LTI*

19、-6364333丄4l(4i3.5xl)T2 + (l3)】434(35l7 754 25)+Ll(4一TVT丄也)4381X【3A!T1】-XT8T8440(IO.12S)X8K441(0.25)2X2562442l+r(I3)+(L)+y6+(7)+(-xl01x2x32x3x4198x9x10477丄亠+丄+亠+1x21x2x3”2x3x4Ix2x3x4x$Ix2x?x4x5x6Ix2x3x4x$x6x7478仍丄+一+一葉_1*0+2)(l+2)x(l+2+3)(1門妙皿心“4)(1+“T49)X(1+“覇0)483 Q )x(1扌)x(1土)x(1扌)xx(l占)x(1冷)?t1I

20、4t100M+3(l+2)x(l+2+J)(1+“爾(|+“4)， ，M0+： ：+-+99)x0+2+-4l00)48,笄+竺斗昨484479f-l 5J-1 74-l19931 19952-!4_ _ _10_lx (1+2) (l+2)x()+2+3).O+2+3+-+9)X(1+2+3+-+1O)480486489g 土 土対+10022-13J-142-l99J-1490丄芒+2+2+42+12+21+蘭34 5 78 20 2124 3549】丄2異+2丄+11 +蘭3 5712202830 42488土凹+出竺+也5x66x77x88x99x101( 3549637791105)

21、3|161220304256丿88494|丄+2-2 + 11-久匕上6 12 20 30 42 56 72 904871x33x5+5x75/99x101493365791113- + - + - + + + + 5 7 6 12 20 30 42495丄 +3 + 2 +旦 + _45 12 20 15496F+嚴(yán)t丁+十1x22x3jJ+193 2 + 20218x1919x20499 3亠亠+ + la33x53x5x73x5x7x9x11175+30 12498丄+丄+丄+ 2x3 4x598x99 5152答案竺8459910560*414171025-13.34-24-31.54

22、17525土731834.766-261101-899.5斗1021.995674-8103-406&110435.369-8110564702345-199.59610671-411107一訂一72-2-62108124573200525110-4998751001113761_ 21121_ 377-817551 14一802A81451152512438228-141168327427130-16、29158 2-131-29159-0.461w 3132-160 6 18427133-21611O 3134 31

23、62-43.6135-1163 -9444-.1136 164-11-153391651137-2016624.5138 -80167 45 139一7501168 -772140 C,31j169 3-11481412 3w 2170 -6一.53142 1 9!71114143-317 2 1 1442605145 2580173 035245053-20-4-54-303“ 2-4.22554 一3-256-7757-10606150358 2-635910_1,丄60-27116114 61101*6211-238115400063I?斗BT,5641-6875311 658_ 208

24、45511785211886-7871119884-81：089-612190-891-11122924193161239421249510012596-6)2697-2509829127995 031281000129-斗16146147-2007-267614824* -5349149 3815005151 3.364215：2?73153 78154/640155 57-645525一156 -2412-486157140.8515200717426 2008351753二6176177-265121178215179T1801718】-2182-11830184748185261186

25、-10.081873.47188-8.7513456789101112131415161718192021J-S ag2324252627282930313233-6121_7-2531.3-120_ i127699161_6120空2501256?230 31231072352362372382396-10-11-4-1443243244245246247248717-24-502249 -11.04252 -10253 -1060254. 8 3255 -1256. 614257. 27258 13“8259. -8-9260. -2 261.0262 14-85-1734266 -226

26、7. -6-4268 4269.251270. -6271. -2-263264265169 272 -196273. -58 274-90 56275.-1527631277242782796435028031281283284285-72 272425-16286.2-5287.-85288.-11289.-1029022291.1087292-342293.15294.02950296.0297999229816T299.18300-2-2301.0302.30.3303230420305.-43306.11307-1.033088309-50310-8.5311-66312A3313-

27、353146315999199931683173 153188319- 45320-28345 -41-321n .9731.3323-120324-903325413265327632832999161330613331-20 25332029333_ 6334一&53335433613377338 -3339-7340073411634203438344-4-33711637259346 -3 -2347. -9348-38.1377 1 378 -104.272379 -90038019900038103821351-1.53522.94353-0.33

28、54203553-85 -356613576 -6358359360253343 -1.023614-3623 -2363-136410365-9.763668367350368536971331999370 111374 -1191375237656 58431891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182194555383 0409 9384410-1743512.54111 385524436204_ 1386 -14122 343725238736413

29、3438388189414-108415-54393893邁-3416-13144044122442390 0417-17-3913897326443115392418202444200173934191014445394 -2420-9395 2475q421丄446396442221447397. -482423Q448398O25424-58399 -12542536449400-2 a 194010426494502o402125427-32.814511011240304286452 15 32404S429-3418430-504534052543130454432-172 441

30、596381 -2450210059992009767561101406 9丄2 407. 30408 13433 14.585434.114555+ + 1+2+3+41+2+3+4+5+6+7=1 +-=-+-=- + +-=-2x33x47x8原式=2008 + 2009 +2010+ 2011 + 2012 +-+-+-+-+-3x66x99x1212x1515x18丄一丄)56丿=1OO5=- +-+-+-+-+- +-1x33x55x77x99x1111x1313x15(1-1U丄半一丄, +丄x(丄一丄)113) )235) )211315丿439匸LC1 * 3一3x sj +

31、( (3x5一5 x 7 J + + OOl x 2003 _ 2003 x ZOO5 JJ621+Ix22x3*3x4+4x520 x 21456原式+T7rT7帀+46二=2010 x46322331 IO5-37-5 . 11-71535111 +-+ 771TT4Q=lx原式=(】-+(1-討+(】-朗+(1-品)=_ (占 + 磊 + +99 JlOo)=99一(1_2 +丄一丄+ +丄-丄)22399100j=981OO=寸(1 X 2 - 8x J=3514449491980038625340032320096031OO_一1OO_ 原式=+ +- ( +1x2x32x3x43x

32、4x599x100 x1012x33x4=100 x1x(1-1)-(1-)= 24 221010021O11O1原式=gx1OO1OO!_ +_ +_ 11x2x32x3x42x3x43x4x57x8x98 x9x10119121601 1= Ix_!-1311x2x38x9x10原式=3xlx(1-31x2x32x3x42x3x43x4x5宀* 17x18x19- 18x19x20)_ _1_ 1= 3x19x20-1 _ 1139 1x2x3 18x19x20 18x19x20一6840 3 + 23 + 43 + 16BRxC =-+-1x2x32x3x4=3x-+-1x2x32x3x

33、4+ +-8x9x10+ I )8x9x10丿嗚x（廿占+著廿怙1x29x10r7_1_丄Z_6O_54654664674684694704714714734744774754761719-+-+ +-+-2x3x43x4x58x9x109x10 x112+33 + 49+10= + “ + + 2x3x43x4x59x10 x1113x44x5fl 111=I + + V3 445J丄丄Vlxfl-13 IV 2匕所以Hl式=11559x1 lj + -+-3x42x44x5(1 1111 f 1111111011J2243546丄+丄一丄)=旦+丄旦)=2110311J332( (533)

34、 )55x = 651 . 551111、810911J.-十- + +2x3x4x5x6 3x 4x 5x 6x 72x6+43x7+41x 2x 3x4x 5 2x 3x4x 5x 63x4x5x6x7( 1 1 1=I-+- +-l2x 3x43x4x54x5x6(4444、lx 2x 3x4x 5 2x 3x 4x 5 x 6 3x4x 5x 6x710 x11x12x13x14/11 1 1、3x4 4x511x12 12x13丿原式=-lx 2x3x4x5 1x5 +410 x11x12x13x1410 x14 + 410 x11x12x13x1411x12x13Xo+1- - +

35、-Vlx 2x 3x4 2x 3x4x 5 2x 3x4x 53x4x5x6= lxp_kf1_ 1_1212x312x13丿11x2x3x411x12x13x14 J1 1 1 1122x12x12411x12x13x14117583086161123- +-+2*32x3x4 2x 3x4x 54-110-12x3x41 1+2x3x4-xlO12x32x3x436287992x3x4.-x9xl036288003-1 .4-110 xllxl2xl3 11x12x13x14)77 + 1811x12x13x1482x11x142x3x4 x102x 3x4 -x9 2x3x4-x9xl0

36、5-16-17-1-+-+-+- +-1x2x31x 2x 3 x 41 x 2x 3x4x 51 x 2x3x4x 5x6Ix2x3*4x5x6x71 1 1 11x2x3 1x2x3 lx 2x 3x4lx 2x3x4x5x6x7” + 1 “1x2 lx 2 Ix2x3x4x5x6x7 1503950405040474477991二r3原式=一-一1x2x3Ix2x3x43-1t4-1* 1x2x3 Ix：x3x41 1 11X2X3X.X1OO100-1lx 2x3x-.xlOO1 .-+ -lx 21x2x31x2x3 Ix2x3x41II 11x2 lx 2x3x.xlOO4Ix2

37、x3x-.x991 x 2x3x.-xlOO原式1x3=()+ ,1332 J Iix(i+2)Tm1003x6100156x10 10 x151) + (6501225x1275J 丄)一丄丄61012251275127412753_ 11(1 + 2)x(l + 2 + 3) TTE_ 1 + 2+3 1 1(l + 2 + + 99)x(l + 2 + + l00)1+2 + + 99 l+2 +】00所以原式=1一 ；-一一1 + 2 + +1005049=1 5050 5050士，23410、1x3 3x6 6x1045x55.h 1.1 1.1 111 )= 1 1 1 + + + + I 3 3 6 6 1045 55丿155眾式=*（4?6）+（6?8）+（8xl0）+（10 x12）+（12xl4丄丄+丄二+丄二+丄二+ 丄”丄2